public async Task <List <ChannelIdentifier> > LoadFromDisk()
{
if (File.Exists(FileName))
{
var livestreamFileText = File.ReadAllText(FileName);
LivestreamFileData livestreamFileData;
try
{
livestreamFileData = JsonConvert.DeserializeObject <LivestreamFileData>(livestreamFileText);
}
catch (JsonSerializationException)
{
livestreamFileData = new LivestreamFileData();
}
if (livestreamFileData.FileVersion == 0)
{
var fileEntries = JsonConvert.DeserializeObject <List <LivestreamFileEntry> >(livestreamFileText);
await ConvertTwitchUsernamesToChannelIds(fileEntries);
await PopulateDisplayNames(fileEntries);
livestreamFileData.FileVersion = LivestreamFileData.CurrentFileVersion;
livestreamFileData.LivestreamFileEntries = fileEntries;
// in case something went wrong in the conversion make a copy of the existing file first
File.Copy(FileName, $"{FileName}_{DateTime.Now:yyyyMMddHHmmss}.bak");
SaveToDisk(livestreamFileData);
}
return(livestreamFileData.LivestreamFileEntries.Select(entry =>
{
var apiClient = apiClientFactory.GetByName(entry.StreamProvider);
return new ChannelIdentifier(apiClient, entry.ChannelId)
{
ImportedBy = entry.ImportedBy,
DisplayName = entry.DisplayName
};
}).ToList());
}
return(new List <ChannelIdentifier>());
}
public void SaveToDisk(IEnumerable <ChannelIdentifier> livestreams)
{
if (livestreams == null)
{
return;
}
var livestreamFileEntries = livestreams.Select(x => new LivestreamFileEntry()
{
ChannelId = x.ChannelId,
StreamProvider = x.ApiClient.ApiName,
ImportedBy = x.ImportedBy,
DisplayName = x.DisplayName
}).ToList();
var livestreamFileData = new LivestreamFileData()
{
FileVersion = LivestreamFileData.CurrentFileVersion,
LivestreamFileEntries = livestreamFileEntries
};
SaveToDisk(livestreamFileData);
}
private void SaveToDisk(LivestreamFileData livestreamFileData)
{
File.WriteAllText(FileName, JsonConvert.SerializeObject(livestreamFileData, Formatting.Indented));
}